Construction of CeO2/TiO2 heterojunctions immobilized on activated carbon fiber and its synergetic effect between adsorption and photodegradation for toluene removal

Li, Yuwei; Li, Wei; Liu, Fang; Li, Meng; Qi, Xuejin; Xue, Ming; Wang, Yongqiang; Han, Fenglei

doi:10.1007/s11051-020-04860-4

Cited by 21 publications

(9 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The UV spectrum assay provided the bandgap of CeO 2 NPs as 2.65 eV. Spectroscopic photoluminescence assay provided evidence of defect states on a large scale within the O 2 valency band [ 53 ] and defects responsible for quick oxygen transportation [ 55 ]. The FTIR assay proves that the phytochemicals and flavonoids occur in the leaves serve as the reducing and stabilizing factor during NPs synthesis and this could further enhance its antimicrobial ability [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Elderdery

Alzahrani

Alabdulsalam

et al. 2022

Bioinorganic Chemistry and Applications

View full text Add to dashboard Cite

Currently, new advancements in the area of nanotechnology opened up new prospects in the field of medicine that could provide us with a solution for numerous medical complications. Although a several varieties of nanoparticles is being explored to be used as nanomedicines, cerium oxide nanoparticles (CeO2 NPs) are the most attractive due to their biocompatibility and their switchable oxidation state (+3 and +4) or in other words the ability to act as prooxidant and antioxidant depending on the pH condition. Green synthesis of nanoparticles is preferred to make it more economical, eco-friendly, and less toxic. The aim of our study here is to formulate the CeO2 NPs (CeO2 NPs) using Morinda citrifolia (Noni) leaf extract and study its optical, structural, antibacterial, and anticancer abilities. Their optical and structural characterization was accomplished by employing X-ray diffractography (XRD), TEM, EDAX, FTIR, UV-vis, and photoluminescence assays. Our CeO2 NPs expressed strong antibacterial effects against Gram-positive S. aureus and S. pneumonia in addition to Gram-negative E. coli and K. pneumonia when compared with amoxicillin. The anticancer properties of the green synthesized CeO2 NPs against human acute lymphoblastic leukemia (ALL) MOLT-4 cells were further explored by the meticulous study of their ability to diminish cancer cell viability (cytotoxicity), accelerate apoptosis, escalate intracellular reactive oxygen species (ROS) accumulation, decline the mitochondria membrane potential (MMP) level, modify the cell adhesion, and shoot up the activation of proapoptotic markers, caspase−3, −8, and −9, in the tumor cells. Altogether, the outcomes demonstrated that our green synthesized CeO2 NPs are an excellent candidate for alternative cancer therapy.

show abstract

Section: Discussionmentioning

confidence: 99%

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Elderdery

Alzahrani

Alabdulsalam

et al. 2022

Bioinorganic Chemistry and Applications

View full text Add to dashboard Cite

show abstract

“…43 One group of two peaks at 901 eV corresponds to the 3d 3/2 spin orbital and another group of two peaks at 882 eV corresponds to the 3d e spin orbital. 43,44 These peaks are asymmetric, which is attributed to the mixture of Ce 3+ and Ce 4+ in the CeO 2 structure. Fig.…”

Section: Nanozyme Synthesis and Simulated Body Fluid Preparationmentioning

confidence: 99%

Conservation of the enzyme-like activity and biocompatibility of CeO₂ nanozymes in simulated body fluids

Zeng,

Zhang,

Tang

et al. 2023

Nanoscale

View full text Add to dashboard Cite

show abstract

“…In case of (Ti-Ce) system two significant phenomena occur: on CeO 2 oxide surface some oxygen vacancies are formed through interaction with oxygen species from gas/liquid phase and a redox couple Ce 3+ /Ce 4+ (Figure 14D) is formed [91,92]. Furthermore, Ce 3+ is able to generate radicalic species in a similar manner with electrons from the conductive band (Equations ( 21) and ( 22)); a transfer of electrons from CeO 2 also occursconduction band to TiO 2 conduction band since bandgap energy of CeO 2 is situated at more negative values (−0.37 eV) than those of TiO 2 (−0.24 eV) while holes migrate in opposite directions (Equations ( 23) and ( 24)) [92]. Hence, (Ti-Ce-Sn) system apart from a slower recombination of charges may be subject to electron agglomeration in SnO 2 conduction band and of holes in CeO 2 valence band.…”

Section: Ozone Consumptionmentioning

confidence: 99%

Removal of Paracetamol from Aqueous Solutions by Photocatalytic Ozonation over TiO2-MexOy Thin Films

Avramescu

Fierăscu

et al. 2022

Nanomaterials

View full text Add to dashboard Cite

Analgesics and nonsteroidal anti-inflammatory drugs (NSAIDs) such as paracetamol, diclofenac, and ibuprofen are frequently encountered in surface and ground water, thereby posing a significant risk to aquatic ecosystems. Our study reports the catalytic performances of nanosystems TiO2 -MexOy (Me = Ce, Sn) prepared by the sol-gel method and deposited onto glass slides by a dip-coating approach in the removal of paracetamol from aqueous solutions by catalytic ozonation. The effect of catalyst type and operation parameters on oxidation efficiency was assessed. In addition to improving this process, the present work simplifies it by avoiding the difficult step of catalyst separation. It was found that the thin films were capable of removing all pollutants from target com-pounds to the oxidation products.

show abstract

Construction of CeO2/TiO2 heterojunctions immobilized on activated carbon fiber and its synergetic effect between adsorption and photodegradation for toluene removal

Cited by 21 publications

References 71 publications

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Conservation of the enzyme-like activity and biocompatibility of CeO₂ nanozymes in simulated body fluids

Removal of Paracetamol from Aqueous Solutions by Photocatalytic Ozonation over TiO2-MexOy Thin Films

Contact Info

Product

Resources

About

Construction of CeO2/TiO2 heterojunctions immobilized on activated carbon fiber and its synergetic effect between adsorption and photodegradation for toluene removal

Cited by 21 publications

References 71 publications

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Conservation of the enzyme-like activity and biocompatibility of CeO2 nanozymes in simulated body fluids

Removal of Paracetamol from Aqueous Solutions by Photocatalytic Ozonation over TiO2-MexOy Thin Films

Contact Info

Product

Resources

About

Conservation of the enzyme-like activity and biocompatibility of CeO₂ nanozymes in simulated body fluids